道指开盘跌0.3%，标普500跌0.3%，纳指跌0.1%

Group 1 - Metsera, a weight loss drug manufacturer, surged 58.9% after announcing its acquisition by Pfizer for $4.9 billion in cash [1] - Pfizer's stock increased by 1.0% following the acquisition announcement [1] - Compass, a brokerage giant, plans to acquire competitor Anywhere in an all-stock deal valued at $1.6 billion, leading to a 55.5% rise in Anywhere's stock [1] Group 2 - Compass's stock fell by 7.9% in response to the acquisition news [1] - Sarepta Therapeutics rose by 6.8% after BMO upgraded its stock rating to "outperform," predicting the stock price could more than double [1] - WeRide, a company in the autonomous driving sector, increased by 2.3% as it announced the launch of its autonomous taxi service in Singapore [1]